Artículos de revistas
On the excitation of PG1159-type pulsations
Fecha
2005-12Registro en:
Gautschy, Alfred; Althaus, Leandro Gabriel; Saio, Hirouki; On the excitation of PG1159-type pulsations; EDP Sciences; Astronomy and Astrophysics; 438; 3; 12-2005; 1013-1020
0004-6361
CONICET Digital
CONICET
Autor
Gautschy, Alfred
Althaus, Leandro Gabriel
Saio, Hirouki
Resumen
Stability properties are presented of dipole and quadrupole nonradial oscillation modes of model stars that experienced a late helium shell flash on their way to the white-dwarf cooling domain. The computed instability domains are compared with the observed hot variable central stars of planetary nebulae and the GW Vir pulsators.